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package core
import (
"bytes"
"time"
cmn "github.com/tendermint/tendermint/libs/common"
"github.com/tendermint/tendermint/p2p"
ctypes "github.com/tendermint/tendermint/rpc/core/types"
sm "github.com/tendermint/tendermint/state"
"github.com/tendermint/tendermint/types"
)
// Get Tendermint status including node info, pubkey, latest block
// hash, app hash, block height and time.
//
// ```shell
// curl 'localhost:26657/status'
// ```
//
// ```go
// client := client.NewHTTP("tcp://0.0.0.0:26657", "/websocket")
// result, err := client.Status()
// ```
//
// > The above command returns JSON structured like this:
//
// ```json
// {
// "jsonrpc": "2.0",
// "id": "",
// "result": {
// "node_info": {
// "id": "53729852020041b956e86685e24394e0bee4373f",
// "listen_addr": "10.0.2.15:26656",
// "network": "test-chain-Y1OHx6",
// "version": "0.24.0-2ce1abc2",
// "channels": "4020212223303800",
// "moniker": "ubuntu-xenial",
// "other": {
// "amino_version": "0.12.0",
// "p2p_version": "0.5.0",
// "consensus_version": "v1/0.2.2",
// "rpc_version": "0.7.0/3",
// "tx_index": "on",
// "rpc_addr": "tcp://0.0.0.0:26657"
// }
// },
// "sync_info": {
// "latest_block_hash": "F51538DA498299F4C57AC8162AAFA0254CE08286",
// "latest_app_hash": "0000000000000000",
// "latest_block_height": "18",
// "latest_block_time": "2018-09-17T11:42:19.149920551Z",
// "catching_up": false
// },
// "validator_info": {
// "address": "D9F56456D7C5793815D0E9AF07C3A355D0FC64FD",
// "pub_key": {
// "type": "tendermint/PubKeyEd25519",
// "value": "wVxKNtEsJmR4vvh651LrVoRguPs+6yJJ9Bz174gw9DM="
// },
// "voting_power": "10"
// }
// }
// }
// ```
func Status() (*ctypes.ResultStatus, error) {
var latestHeight int64 = -1
if consensusReactor.FastSync() {
latestHeight = blockStore.Height()
} else {
latestHeight = consensusState.GetLastHeight()
}
var (
latestBlockMeta *types.BlockMeta
latestBlockHash cmn.HexBytes
latestAppHash cmn.HexBytes
latestBlockTimeNano int64
)
if latestHeight != 0 {
latestBlockMeta = blockStore.LoadBlockMeta(latestHeight)
latestBlockHash = latestBlockMeta.BlockID.Hash
latestAppHash = latestBlockMeta.Header.AppHash
latestBlockTimeNano = latestBlockMeta.Header.Time.UnixNano()
}
latestBlockTime := time.Unix(0, latestBlockTimeNano)
var votingPower int64
if val := validatorAtHeight(latestHeight); val != nil {
votingPower = val.VotingPower
}
result := &ctypes.ResultStatus{
NodeInfo: p2pTransport.NodeInfo().(p2p.DefaultNodeInfo),
SyncInfo: ctypes.SyncInfo{
LatestBlockHash: latestBlockHash,
LatestAppHash: latestAppHash,
LatestBlockHeight: latestHeight,
LatestBlockTime: latestBlockTime,
CatchingUp: consensusReactor.FastSync(),
},
ValidatorInfo: ctypes.ValidatorInfo{
Address: pubKey.Address(),
PubKey: pubKey,
VotingPower: votingPower,
},
}
return result, nil
}
func validatorAtHeight(h int64) *types.Validator {
privValAddress := pubKey.Address()
// If we're still at height h, search in the current validator set.
lastBlockHeight, vals := consensusState.GetValidators()
if lastBlockHeight == h {
for _, val := range vals {
if bytes.Equal(val.Address, privValAddress) {
return val
}
}
}
// If we've moved to the next height, retrieve the validator set from DB.
if lastBlockHeight > h {
vals, err := sm.LoadValidators(stateDB, h)
if err != nil {
return nil // should not happen
}
_, val := vals.GetByAddress(privValAddress)
return val
}
return nil
}